Sander



FIG. 1 is a perspective view of a sander showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view;

FIG. 4 is a top plan view;

FIG. 5 is a bottom plan view;

FIG. 6 is a front side elevational view; and,

FIG. 7 is a rear side elevational view. 

The ornamental design for sander, as shown and described. 